Fragmentation barriers of toroidal and bubble nuclei

Journal Article · Fri Apr 01 04:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.R1778· OSTI ID:5092751

Xu, H M; Gagliardi, C A; Tribble, R E ^[1]; Wong, C Y ^[2]

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1. Cyclotron Institute, Texas A M University, College Station, Texas 77843 (United States)
2. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

With an improved Boltzmann-Uehling-Uhlenbeck model, the deformation energy surfaces in reactions leading to the formation of toroidal and bubble nuclei are examined for central [sup 92][ital Mo]+[sup 92][ital Mo] collisions. We found that the potential maximum, or the fragmentation barrier, occurs at times close to the times when these exotic shapes are formed. However, due to the dynamics of large amplitude compression and expansion, the fragmentation barriers are significantly higher than those estimated from the liquid-drop models.

• DOE Contract Number: FG05-86ER40256; AC05-84OR21400
• OSTI ID: 5092751
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:4; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663300* -- Nuclear Reactions & Scattering
General-- (1992-)
663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BUBBLES
CHARGED-PARTICLE REACTIONS
DEFORMATION
ELECTRON CAPTURE RADIOISOTOPES
EVEN-EVEN NUCLEI
FRAGMENTATION
HEAVY ION REACTIONS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOTOPES
MANY-BODY PROBLEM
MOLYBDENUM 90
MOLYBDENUM 92 REACTIONS
MOLYBDENUM ISOTOPES
NUCLEAR DEFORMATION
NUCLEAR REACTIONS
NUCLEI
POTENTIALS
RADIOISOTOPES